What is Open Graph and why does it matter?

Open Graph is an open metadata protocol originally created by Facebook that allows webmasters to control how their links appear when shared across social networks, messaging apps, and community forums.

What is the recommended size for og:image?

The optimal dimensions for an Open Graph image are 1200 x 630 pixels (an aspect ratio of 1.91:1). Images smaller than 600 x 315 pixels will render as small thumbnails rather than rich full-width summary cards.

Why are my Open Graph tags not updating on Facebook or Twitter?

Social platforms heavily cache link metadata for days or weeks. To force an update, use the Facebook Sharing Debugger, Twitter Card Validator, or LinkedIn Post Inspector to purge their edge cache.

Is this Open Graph preview tool free?

Yes, completely free with unlimited checks, instant preview tabs, and no signup.

SOCIAL CARD PREVIEWER • MULTI-PLATFORM TESTER

Open Graph Checker & Social Card Simulator

Preview exactly how your website links appear when shared on Twitter/X, Facebook, LinkedIn, Discord, and Slack. Test Open Graph meta tags, image aspect ratios, and character limits in real-time.

Open Graph Tags

og:title * 0 / 60 chars

og:description * 0 / 160 chars

og:image URL (1200 x 630px recommended) *

og:url (Canonical Link) *

Audit Status

zerocostai.pro

Title Preview

Description Preview

What Is the Open Graph Protocol and Why Is It Critical?

The Open Graph protocol enables any webpage to become a rich object in a social graph. When visitors share your link on Facebook, X (formerly Twitter), LinkedIn, Discord, Slack, or WhatsApp, social network crawlers scrape these meta tags to display an engaging visual summary card complete with a high-resolution banner, title, and description. Links with rich Open Graph previews receive over 250% higher click-through rates than plain text URLs.

Key Open Graph Tags You Must Include

og:title: The headline of your page (keep under 60 characters to avoid mobile truncation).
og:description: A 1-2 sentence compelling summary (sweet spot is 120-160 characters).
og:image: Absolute URL to an image formatted at 1200 x 630 pixels.
og:url: The canonical URL of your page.
twitter:card: Must be set to summary_large_image for full-width banner rendering on X.

Why Use ZeroCostAI's Open Graph Simulator?

Multi-Platform Preview: Test simultaneously for Twitter/X Dark Mode, Facebook Feed, LinkedIn Cards, and Discord Chat embeds.
Image Size Validation: Alerts you immediately if your image URL or aspect ratio risks rendering broken or blurry cards.
1-Click HTML Generator: Generates clean, copy-pasteable meta tags ready for your site's <head> section.
100% Free & Client-Side: No rate limits, paywalls, or registrations.

Frequently Asked Questions

Can I use a relative URL for og:image?

No. Open Graph protocols strictly require absolute URLs (e.g. https://yourdomain.com/images/og.png). Relative paths will cause social networks to fail to load the image.

How do I clear the cached Open Graph card on Facebook?

Go to the Facebook Sharing Debugger, paste your URL, and click "Scrape Again". This purges Facebook's edge cache and updates your card preview immediately.

Related Free Webmaster Tools

Meta Tag Generator → Website Grader → XML Sitemap Generator →